How do they make hydrogen clean? 95% of hydrogen comes from burning fossil fuels. I doubt they're going through electrolysis to make the hydrogen or sourcing it from a supplier that does.
It's part of the ongoing process, we can't skip to the final step. I think it is fair to rely on electricity and assume it will at least one day be green when thinking about green processes in totality, since some places are already generating green electricity. In my city we have a hydrogen plant powered mostly y solar that is feeding the steel mill, and this is just the beginning of exploring this process so it is bound to get more efficient.
